A system and method for mapping a voice identity to a telephone number includes: one or more phone systems; at least one policy processor coupled to the one or more phone systems; and a voice identity mapping data structure accessible to the at least one policy processor. The voice identity mapping data structure includes: search voice identities transitively mapped to one or more target voice identities, where the voice identity matches a first search voice identity, the first search voice identity is mapped by the policy processor to a first target voice identity according to a first mapping policy, the first target voice identity matches a second search voice identity of a second mapping policy, the second search voice identity is mapped by the policy processor to a second target voice identity according to the second mapping policy, where the voice identity includes a non-phone number voice identity.